Okay, I’m finally going to ask.
I don’t work on new homes very often anymore, but there are a ton of them being built around here and I’m interested so I take a peek when I get a chance.
One thing I see that confuses me is the practice of putting house wrap directly on the studs, then sheathing over it with T-111. Could someone explain the idea behind that?
Thanks.
TIPI,TIPI,TIPI!
Replies
Because it's cheap.
And, of course, some people are conflicted about whether to run their sheathing vertically or horizontally and, in the end, say "what the hell" and just skip that step altogether. :-)
No, I understand why people use T-111 as siding. I don't understand why they put house wrap under it. Is that an I.R.C. thing?TIPI,TIPI,TIPI!
2003 IRC, R 703.2, Table R 703.4, note G., pps. 204-205.Andy
"Never try to teach a pig to sing. It wastes your time and annoys the pig." Robert A. Heinlein
"Get off your dead #### and on your dying feet." Mom
It's an air barrier and hopefully a drainage plane as well. Just because it's not over sheathing doesn't mean it's not necessary. I have a client with a small one-story T1-11 house and I did some window and door stuff there that required removing siding and replacing it. New tyvek lapped over the old, directly on the studs, taped, and then the siding. I think the stuff is very good at keeping the wind out, and fairly good at keeping the water out if done correctly.
Did you see my thread about T-footing/wall forms? Someone said you have a good detail for that.
Edited 2/2/2006 10:29 am by davidmeiland
Thanks, Andy.
I didn't see your thread, David. I'll go track it down.TIPI,TIPI,TIPI!